Machine for operating on strip stock



Sept. 16, 1952 F. KOCH MACHINE FOR OPERATING ON STRIP STOCK 2SHEETS-SHEET 1 INVENTOR. Feaaf/v/ck Ao Ch BY m y, frdfiA f) Filed Aug.18, 1950 Sept. 16, 1952 F. KOCH MACHINE FOR OPERATING ON STRIP STOCK 2Si-lEETS-Sl-IEE'I 2 Filed Aug. 18, 1950 INVENTOR. FREDERICK A OCH BY 8Patented se sis, 952

MACHINE'FOB QPERA JNQTDNTSTR PJ s'rocK FrederickKoch, Sparta,- N; J.,'.assignor to ,Todfli Rutherford, ,N. J as trustpew;

Application August 18, 1950; SerialiNg; 180,131" 1 '1, c1aimt-,. (01.29-32) The inventiondisclosed in this patent appl-ication--concernscertain improvements in so-' called -Mu1ti-Slidemachines;

Machines known under'this name'are characterized by havinga bedsupportingvarious ma chine tool elements-operated by cams and eccentricson shafts gearedtogether about the bed,

substantially asshown in Borton'Patent 1383,513

of Gctober 18519325 Basically these machine tools are punch pressdevices "mounted in properly cooperating relation n*the bed and actuatedin proper-1y synchronized order by -the -cams and eccentrics on thesurrounding shafts p With such-an organization it has been possibletoperform'agreat variety of piercing, punching; blanking; forming,swagin'g, drawing; riveting; staking; bending;- cutting and assemblingoperations; 7

Some limitations have developed, however, and

1 ture; howeverymaybe mo itis'with 'a--view'to; overcoming thoselimitations that'the present invention has been devised:

Following basic principles of press'joperation, Multiaslidei. machineshave been built with press units made up" of companion ram and bolsterelements. carrying. the necessary die sets. The rams have been mountedon the front of the bed so as to beoperated by-the -front cam shaft,

and the bolsters at the back, braced-lto-taketheload by an;tupstanding-g; abutment; irail extending along the rear edge of the bed,

withmhissarrangement operations are directed towardftheback of the stripso that bendin sand forming wilhb'e to that side of ,the..strip.,andianybiurrs will beleftat the back'andscrap be knocked outfattheback'of thestrip. 7

. Vhil these limiting factorsordinarily arelnot objectionable, there areoccasions.wheredtwould be highly desirable to work in from the back ofthe strip or possibly tosimultaneously work in frorrnboth sides of thestrip.-

Accordingly, it is a generaLpu-rpose of .the presem, .-inv.ention to sorevise and re-design these Multi-Slide machines .that they, .may operatewith equal facility on either 'or both sides of the stock which" theyhandle. and to accomplish 'this in a manner and with structure utilizingthe best principles ofthis machine.

More specific objects of the invention are to simplify, stifien andstrengthen the bed structure and to so arrange the parts that they maybequickly and easily mounted on the bed to operate from either the frontor the back of the machine; to provide a symmetrical form of structureand to accomplish an equalizing and balancing of power as applied byethic--shafts.- at the a-difierent sides of the'machine;

A special-important object of theinventi'onz is to enable theproductionof more complicated or: more extensively worked piecesthan'has heretofore beenpossible onthese machines, for example; toeffect deeper-drawing orlonger or more= varied bending operations:

Other special objects and the novel-features of i invention throughwhich all such-"purposes are attained areset forth or will" appear inthe-course" ofthe fol-lowing specificatiom The '-drawingsaccompanying-and-forming =part of the specification are ;-illustrati-ve "ofapreseh-t;

commercial embodiment of the invention;- Struc ,d d'ee =h a within thetrue intent :and broadjscope of them-'- ventiorr as hereinafter-definedand claimed-J Fig; 1 in the, drawings-- is ageneral op l s-1 view ofone-0fthe 1 new- Multi slidef machines ha r th t r t kli f e f tu ed: te present invention:

Fig.2 is a brokentransverse cross sectionalview of.;th e bed of themachine aslonsubstantially the planeof line 2'2 of Fig.' 1;

Fig, 3 i s'an enlarged brok n'c ectimlaly w of "t e ma ne. a .on ;su stnt th p ane. o

line ,3-'-'-3 of Fig; 1, showing a-ram operatingfrom theback ofth'emachine;

-- Fig-lie isa .s m ar..v w.ne ubstah ia iitbe plane'ljnf line g toflifiglg showin companion; rams 'simultaneously op'erating, from.both'jsides'. of

the machin'e.

' In the ,present in -vention the. stockis indon.-

" a ,center ,linejIoi/ter. thegbed 6 andthelattenlals,

shown,,,in..,FigM'IZMisMflat and substantially-s metrical...with,plairn. fiat. side .1 "andsfi .and,..,

undercut anchorage slots 5 vand.lll..ir1' the'.top at,

equaLdist'ances. from the center line Thelcens ter groove 1 i issuitably .shapedto accommodate slides .whichmay be operatedin.fromone'or both endsof themachine.

The .bed carries, at the four; .;corner,s ,.:j6urna1 b k ,h --l 14vandend shafts] 5,. HLcQnnectedlat adjoinin finds by gears .in the.gearboxes ,.I 1; Power pplied. tothis; ring .ci shaftjing'.u sually.vthrough gearing bearings "l2 llfor. the rant and toLshaft 1 5r Fig. 1illustrates in which two rams are operated from the front shaft and twofrom the back shaft and with intermediate rams directly opposite anddirectly.

cooperating. i The front rams are designated l8 and J9 and the back rams20 and 2|.

a special tooling arran d?i 121;.

bolts and nuts 24, 25, by which they may be.

secured down on the bed in the same manner as the ram bases.

The intermediate rams I9, 20, are shown as similarly secured, Fig. 4,directly opposite so as to effect drawing, bending, forming or otheroperations possibly double the extent that might be acv :complished witha single ram.

In this coacting relation of the two rams they may be timed so as to oneoperate in advance of or simultaneously with the other and so as at theend of the cycle, to leave the stock substantially in the center line,requiring no stripper action to separate the stock from the dies.

The cams for actuating the ram slides are indicated at 29, 30, 3|, 32,these being designed to efiectuate desired timing and operation of therockers 33, 34, 35, 36, linked by toggles 37, 38, 39, 40, with therespective slides. These cams may be of the split construction used onMulti-Slide machines, in accordance with Borton Patent 2,161,243 of June6, 1939, and which by reason of such split construction may be readilychanged from one shaft to the other.

The rams and bolsters are tied together in fixed relation over the bedby tie bars or bridges designated M, 42, 43, the bars 4| and 43connecting the ram bases and companion bolsters, and the bar 42connecting opposing ram bases.

In all instances, therefore, the companion press members are lockedtogether in fixed relationship.

. In the case of the opposed rams the loads may be equally orsubstantially equally balanced and in other instances the loads on thecam shafts at opposite sides of the machine may be substantiallybalanced. The power applied by the shafts may thus be more or lessequally distributed about the'bed to create free, smooth runningoperating conditions without undue loading at any particular point. Thisdistribution of power enables faster operation and hence higherproduction.

The complete interchangeability of ram and bolster bases on the bedenables the machine to be quickly set up for accomplishing greatervariety of operations and greater extent of movement for bending,forming, embossing, or the like.

The bedbeing of substantially symmetrical design, can be produced atlower cost and be actually stronger, at no greater and possibly lessweight. -The stock, advanced over the center of the bed, may be workedboth ways or, if need be, worked to double the extent to one side. Burrsmay belocated either to one or to both sides, and the same asto anyscrap that may be struck out of the strip. Stampings of more or lesscomplicated form may beproduced by working the stock alternately fromopposite sides or simultaneously by rams coacting from opposite sides ofthe machine. f

The many advantages attained by this invention do not interfere in anyway with the operations which may be performed about the stripperplunger 44, Fig. l, by means of the cooperating former slides 45, 46,41, 48.

What is claimed is:

A metal working machine for operating on straight lengths'of stripstock, comprising a machine tool bed substantially symmetrical toopposite sides of a central longitudinal straight stock feed line, saidbed being substantially flat on top and having correspondingsubstantially straight, fiat, parallel longitudinal sides spaced thesame distance from said central stock feed line and having correspondingparallel, longitudinal ram positioning grooves in the top of the samespaced the same distance to opposite sides of said central feed line,parallel cam shafts journaled at opposite sides of said bed and spacedthe same distance to opposite sides of said central feed line, saidshafts being located in the same relation with respect to the top of thebed and with respect to the sides of the bed and geared to rotate inunison, opposed rams at opposite sides of the stock feed line andoperating in opposite directions against opposite sides of the stock,said oppositely acting rams having bases removably mounted on the bed inlongitudinally adjustable relation at opposite sides of the centralstock feed line, keys on said ram bases engaged in said positioninggrooves in the bed, means for removably securing said ram bases keyed onthe bed in the opposing relation described at different positions in thelength of the bed, said ram bases being re versible end-for-end andinterchangeably mountable on the bed on opposite sides of the centralstock feed line, whereby either ram may be used at either side of thestock feed line and the stock be maintained in substantially a straightline, and cams for operating said rams interchangeablyengageable on saidcam shafts for actuatingsaid rams in cooperative timed relation, mountedas described at either side of saidcentralstraight stock feed line.

FREDERICK KOCH.

REFERENCES CITED The following references are of record in the file ofthis patent:

' UNITED STATES PATENTS OTHER REFERENCES Machinery, vol. 55, No. 9, May1949, pp. to 151;

